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Updated: Jun 1, 2026
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Isolation of Lamina Propria Mononuclear Cells from Murine Colon Using Collagenase E
Published on: September 26, 2019
Collagen levels are normalized after decompression of experimentally obstructed colon
Summary
Collagen concentration in the large bowel wall significantly decreases with experimental colon obstruction but normalizes within 10 days of decompression, suggesting implications for surgical timing.
Area of Science:
- Gastroenterology
- Surgical Research
- Biochemistry
Background:
- Colonic obstruction leads to significant changes in bowel wall composition.
- Understanding collagen dynamics is crucial for managing obstructed colonic conditions.
Purpose of the Study:
- To investigate the changes in collagen concentration within the large bowel wall after relieving experimental colonic obstruction.
- To determine the timeline for collagen normalization post-decompression.
Main Methods:
- Experimental colonic obstruction was induced in rats using a silicone ring.
- Decompression was performed after 4 days to simulate endoscopic stenting.
- Colon circumference and collagen concentration were measured at various time points post-decompression.
Main Results:
- Obstruction caused a twofold increase in colon circumference and a 43% decrease in collagen concentration.
- Collagen levels remained reduced 3 days after decompression but normalized by day 10.
- A trend towards correlation was observed between persistent distension and matrix metalloproteinase activity.
Conclusions:
- The study demonstrates that collagen reduction in an obstructed colon is reversible and normalizes within 10 days of decompression.
- These findings suggest that the timing of surgical intervention after colonic decompression may be critical.
